# OnCo record gej (term). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)". Whole corpus: https://onco.cc/api/v1/onco.nt
@prefix schema: <https://schema.org/> .
@prefix onco: <https://onco.cc/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://onco.cc/terms/gej/>
  a schema:DefinedTerm ;
  onco:kind "term" ;
  schema:identifier "gej" ;
  schema:name "Gastro-oesophageal junction (GEJ)"@en ;
  schema:alternateName "GEJ"@en, "GOJ"@en, "gastroesophageal junction"@en, "gastro-oesophageal junction"@en, "oesophagogastric junction"@en, "junctional"@en, "Siewert"@en, "esophagogastric junction"@en ;
  schema:description "Where the food pipe meets the stomach. Cancers here are classed by how far above or below the junction they centre (Siewert I-III), which decides whether they are treated like oesophageal or stomach cancer."@en ;
  schema:url <https://onco.cc/terms/gej/> ;
  schema:dateModified "2026-09-09"^^xsd:date ;
  schema:sameAs <https://en.wikipedia.org/wiki/Gastroesophageal_junction> ;
  schema:citation <https://en.wikipedia.org/wiki/Gastroesophageal_junction> ;
  onco:related <https://onco.cc/terms/barretts-esophagus/>, <https://onco.cc/terms/oesophagectomy/>, <https://onco.cc/terms/gastrectomy/>, <https://onco.cc/drugs/flot/> ;
  onco:cancers <https://onco.cc/cancers/esophageal/>, <https://onco.cc/cancers/gastric/> ;
  onco:sections <https://onco.cc/fronts/surgery/> ;
  onco:trials <https://onco.cc/trials/cross/> .